Home / 39,781.16-54,901.19-22,790.99

Finding the Fourth Proportional to 39,781.16, 54,901.19 and 22,790.99

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Solution

The fourth proportional to 39,781.16, 54,901.19 and 22,790.99 is: 31,453.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,781.16 : 54,901.19 = 22,790.99 : x
  2. Step 2: Convert to fraction form
    39,781.16/54,901.19 = 22,790.99/x
  3. Step 3: Cross multiply
    39,781.16x = 54,901.19 × 22,790.99
  4. Step 4: Simplify right side
    39,781.16x = 1,251,252,472.28
  5. Step 5: Solve for x
    x = 1,251,252,472.28/39,781.16
  6. Step 6: Final answer
    x = 31,453.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.